# NTSB DEN66A0049: Hiller UH12L4, N9780C, Albuquerque, NM, December 18, 1965

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: December 18, 1965
- Place: Albuquerque, NM · ALBUQUERQUE, NM
- Location: 35.0845° N, 106.6511° W: Placed by OpenAirDocs: center of Albuquerque, NM, within about 8 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.0845&lon=-106.6511&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor, 1 uninjured
- Status: Completed, report October 3, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 175043
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN66A0049
- Page: https://openairdocs.org/ntsb/DEN66A0049

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-1088  65/12/18   ALBUQUERQUE N MEX   HILLER UH12L4       CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1300                    N9780C              PX-  0  0  2  PLEASURE/PERSONAL TRANSP  AGE 48, 12740 TOTAL
                                       DAMAGE-DESTROYED    OT-  0  0  0                            HOURS, 317 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: CLUTCH ASSEMBLY
          ROTORCFT-SLIPPAGE CAUSED BY GLAZED FRICTION SHOES.
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- TOOK OFF FROM SHOPPING CENTER OVER BUILDINGS.
```

## Aircraft

- Registration: [N9780C](https://openairdocs.org/deregistered/N9780C-2013-05-30), registration cancelled 2013-05-30, S/N 2500, built 1964 (OpenAirDocs)
- Reported make and model: HILLER UH12L4
- Registry model: [Hiller UH-12L](https://openairdocs.org/model/hiller-uh-12l) (registry code 4360126) (OpenAirDocs)
- Registry engine: [Lycoming VO-540 series](https://openairdocs.org/engine/lycoming-vo-540-series) (registry code 41534, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

## Other investigations on N9780C (3)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX68A0080](https://openairdocs.org/ntsb/LAX68A0080), Feb 27, 1968: Hiller UN-12L (N9780C), Windna, AZ, substantial damage
- [NTSB FTW67A0056](https://openairdocs.org/ntsb/FTW67A0056), Nov 19, 1966: Hiller UH-12L (N9780C), Woodville, TX, substantial damage
- [NTSB DEN66A0041](https://openairdocs.org/ntsb/DEN66A0041), Dec 6, 1965: Hiller UH12L4 (N9780C), Albuquerque, NM, substantial damage

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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